Currency that glows could happen someday…(2 Photos)

Designers Jaesik Heo, Hojoon Lim and Dahaeng Lim are trying to invent the future of paper currency: bills that glow. The actual method that makes the bills glow softly isn’t disclosed, but it’s clear from the pictures that this concept would make your wallet into a rave every single night. No more trouble making out which bills to tip your bartender in a dark club.